Device for locating places on maps.



0. E. GOWLBS. DEVICE FOR LOGATING PLACES ON MAPS.

APPLICATION FILED JULY 3, 1912.

1 1 10,901. Patented Sept. 15, 1914- 4 Z Tyre lfedeuli l8 4 l m Attorneys.

THE NORRIS PE r E'Rs c0. PHOTO-LITHQ. WASHINGTON. D. c.

ORA E. COWLES,

0F BARTON, VERMONT.

DEVICE FOR LOCATING PLACES ON MAPS.

1,11o,eo1.

Specification of Letters Patent.

Patented Sept. 15, rain.

Application filed July 3, 1912. Serial No. 707,621.

To all whom it may concern:

Be it known that I, ORA E. CowLns, a citizen of the United States, residing at Barton, in the county of Orleans and State of Vermont, have invented a new and useful Device for Locating Places on Maps, of which the following is a specification.

The object of the invention is in a ready, simple, thoroughly feasible and practical manner and with accuracy and rapidity to locate any desired point on a map.

With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists, generally stated, in a map provided on three of its margins with suitably indicated divisions, in combination with a graduated telescopic arm pivotally connected with the unindicated margin and having appropriately designated graduations to co-act with the marginal divisions to locate places on the map, the free terminal of the arm being furnished with an index which may be in the form of a notch to be brought into register with any one of the divisions to cause the proper graduation on the arm to fix the desired location on the map.

The invention consists further in the various novel details of construction of a map and location indicator combined therewith, as will be hereinafter fully described and claimed.

In the accompanying drawings formin a part of this specification, and in which like characters of reference indicate corresponding parts ;-F igure 1 is a view in plan of a map showing the same equipped with a location indicator embodying the characteristics necessary to secure the result designed. Fig. 2 is a fragmentary detail View of a portion of a table bearing the names of the places on the map, and also certain indicating symbols by which, in conjunction with the marginal indicating divisions on the map and the graduating arm, to locate places on the map. Fig. 3 is a perspective detail view of the telescopic graduated indicator arm. Fig. 4 is a transverse sectional view through the arm.

Referring to the drawing, M designates a map in this instance of ancient Palestine, it being understood that the invention is equally adapted to any kind of map Whether mundane or terrestrial. Three margins of the map 1, 2 and 3 are provided with divisions indicated by numerals, in the present instance extending from 1 to 66, the notation eglnning at the upper left hand corner of the map. The indicators 4 defining the divisions are in this instance shown as circles which may be open as exhibited, or solid as may be preferred, and are equally spaced, as clearly shown.

The fourth margin 5 of the map has pivotally connected with it, at a point central of its ends, a graduated arm comprising two members, 6 and 7, the former of which is connected by a pivot 8 with the map, and the latter of which is provided at its free end with an index which may be a notch 9 and adjacent thereto with a depression 10. The two sections of the arm may be connected for telescopic movements in any preferred manner the result in the present instance being accomplished by providing two keepers 11 and 12, the former of which is located at the inner end of the member 7 and passed around the member 6, the free ends of the keeper being secured between the arm member 7 and a spacer 13 which is substantially co-extensive in length with the member 7. The other keeper 12 is secured to the outer end of the member 6 and receives the spacer 13 for sliding movement. This manner of assembling the two members of the arm has been found thoroughly effective in practice, but it is to be understood that any other feasible means may be used for accomplishing the same purpose that may be found practicable and of advantage. The members of the keeper may be constructed of any suit able material such as celluloid, or like ma terial, and the member 6 is graduated, in this instance, into five divisions divided into five equal parts, the five divisions being designated by the letters A, B, O and D. The member 7 is similarly graduated, the divisions being indicated by the letters E, F, G, H, I, J, K On any appropriate part of the map, either on its face or on its back, as may be preferred, is arranged a table 14 on which is printed the names of the different places on the maps, and opposite each name the two indicators corresponding to those on the marginal map and on the arm. Instead of printing the table on the map, it may be printed on a separate sheet to accompany the same.

7 lie promiscuously and haphazard upon the As an example of the manner in which the map is used, let it be supposed that it is desired to locate Bethlehem. Upon referring to the table it willbe found opposite the name Bethlehem the legends and E This indicates that the arm shall be swung until the index or notch 9 registers with the division on the margin of the map indicated by if), and by'casting the eye along the scale on the member 7 until E? is reached, it will be found that Bethlehem appears opposite the latter indication. To facilitate the finding of the places, a pencil or other. pointed instrument may be inserted in the depression 10 in order to manipulate the arm.

Now if all of the places of interest upon perhaps no two places face of the map, and

There must,

will be upon the same circle.

therefore, upon a rigid arm, be as many graduations of characters as there are cirin which places are located, and since each circle may 7 the graduations must be increased in numher, and when the graduations are increased in number, each graduation is rendered c-or respondingly hard to locate, and if muchtime is consumed in the finding of a particular graduation on the arm, the time could as profitably be employed in looking for a given place on the map directly and with M Copies of this patent may be obtained for five cents each, by addressing the upon the map may fective for the purpose and it would be necpass through one place only,

out the use of the arm, the object of the structure being to economize time. i

\ l l a "When the member 7 isslidinwardly and "when the notch .9 is brought successively adgraduation 7 say the graduation E which locates Bethlehem, travels in an irjacent the indicators afar-1y one on the member regular path shown'on the map by the line LA-13 and due to the form of the line A-B it is obvious that'a greatnumber of places single graduation E But few graduations, therefore, are necessary and each graduation on the member 7 is correspondingly easy to find. V

In practice, it will be found that the arrangement disclosed will be thoroughly efdesigned, and will enable anyone in a very short time to be able to locate any point on any map in use.

What I claim isv V A map having characters along its mar gin, and an arm pivoted to the map; the arm having an index at its free end and being provided with graduations, the arm comprising slidably connected parts, permitting the index at the free end of the arm to be broughtinto coincidence with the respective characters thereby to position the arm properly, and permitting eachgraduation on one of the slidably connected parts to assume different positions longitudinally of the arm.

In testimony t at I claim the foregoing as my own, I .have hereto aflixed my slgnature in the presence of two witnesses.

ORA 'E. COWLES.

Witnesses:

, VALLAGE I1. GILPIN,

D. W. ALLEN,

Gommissioner of Eatents,

Washington, D. (3.

be located by aid of this 

